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    Power Electronics

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    Power electronics Mid-1 Objective exam 2011 1.When UJT is used for triggering an SCR‚ the wave shape of the voltage obtained from UJT firing circuit is a a) Sine wave (b) saw tooth wave (c)trapezoidal wave (d) Square wave 2. In a thyristor circuit‚ the angle of conduction can be changed by changing (a) anode Voltage (b) Anode Current (c) Forward Current rating (d)gate Current 3. Freewheeling diodes are mainly used for (a) Better utilization factor (b) di/dt protection

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    Basic Electronics

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    BASIC DIODE ELECTRONICS INTRODUCTION TO DIODES The p-n Junction The p-n junction is a homojunction between a p-type and an n-type semiconductor. It acts as a diode‚ which can serve in electronics as a rectifier‚ logic gate‚ voltage regulator (Zener diode)‚ switching or tuner (varactor diode); and in optoelectronics as a light-emitting diode (LED)‚ laser diode‚ photodetector‚ or solar cell. In a relatively simplified view of semiconductor materials‚ we can envision a semiconductor as having two

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    Processing and DBM? Historical Perspective.   History of Database Processing. Preliminaries  Why is there a need to study File Processing and DBM? Why do we use Databases?  Simply because of ourselves and there is always something that happens around us.   Collect Data Use and Reuse data Historical Perspective Historical Perspective Historical Perspective Historical Perspective The Electronic Age: Diskette Punch Card Why do we Humans desire

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    Electronics Microprocessor

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    American Museum of Natural History‚ Washington D.C. Parks‚ Rosa. 2000. Quiet Strength. Grand Rapids‚ Zondervan‚ Michigan. Rashsundari Devi. 1999. Words to Win. Translated and with an introduction by Tanika Sarkar. Zubaan‚ New Delhi. Roy‚ Tirthankar. 1999. ‘Growth and Recession in Small-Scale Industry: A Study of Tamil Nadu Powerlooms’ Economic and Political Weekly. Valmiki‚ Omprakash. 2003. Joothan: A Dalit’s Life. SAMYA‚ Kolkata. Zubaan. 1996. Poster Women: A Visual History of the Women’s Movement

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    Electrical and Electronics

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    ____________________________________________________________________________________________________________________ Alternating Current and Direct Current Generator Pedro Portela‚ João Sepúlveda‚ João Sena Esteves Department of Industrial Electronic University of Minho‚ Campus of Azurém‚ 4800-058 Guimarães‚ Portugal delfimpedrosa@gmail.com‚ sena@dei.uminho.pt Abstract. Spinning a wire loop within a uniform magnetic field in a convenient fashion induces a voltage between the loop terminals

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    Computer Crimes

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    University Computer Crimes Technology in a Global Society CS300 Table of Contents…………………………………………………….2 Introduction…………………………………………………………..3 (Research Discoveries) Origins of Computer crimes………………………………………….4 Internet fraud…………………............................................................5 Internet Cyber Crime………………………..…………………….…6 Personal Crimes……………………..…………………..…..6.2 Financial Crimes…………………….…………………..…..6.3 Computer hackers…….....

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    Samsung Electronics

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    Q1. Samsung Electronics strategy has successfully achieved both low-cost advantages and differentiated products. Samsung is able to achieve and maintain its low cost position due to various factors. Samsung has always emphasized on process and production efficiency. The company places all its fab lines and R&D facility at a single site‚ so that engineers from various departments can come together to resolve any process or design issues as soon as possible. Benefiting from the collocation‚ Samsung

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    Electronic Medical Records

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    Engineering Management Field Project Electronic Medical Records: A Case Study to Improve Patient Safety at Royal Victoria Teaching Hospital By Annie Bittaye Spring Semester‚ 2009 An EMGT Field Project report submitted to the Engineering Management Program and the Faculty of the Graduate School of The University ofK.ansas in partial fulfillment of the requirements for the degree of Master’s of Science )= • ‚ ‚ Tom Bowlin Cotntnittee Member ’~k Committee

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    computer

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    One of benefits of the method is the small volumes of data that are accessed by utilizing DNA patterns. Experimental results and security assessment experiments indicate that the method suggested has an ideal level of security. With development of computer networks and the increasing use of Internet‚ the discussion of security in transferring data has been put forward as one of important subjects. The reason for it is the accessibility of data in Internet‚ and their easy access by authorized and unauthorized

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    Computer Hardware

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    HISTORY OF INFORMATION TECHNOLOGY The term "information technology" evolved in the 1970s. Its basic concept‚ however‚ can be traced to the World War II alliance of the military and industry in the development of electronicscomputers‚ and information theory. After the 1940s‚ the military remained the major source of research and development funding for the expansion of automation to replace manpower with machine power. Since the 1950s‚ four generations of computers have evolved. Each generation

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